Bergson, Descartes e a Vida Interior

The Socratic Bergson

Qualidade De Vida E Trabalho Voluntário Em Idosos Calidad De Vida Y Trabajo Voluntario En Ancianos

This cross-sectional, comparative study was performed with the objective to evaluate the quality of life of elderly individuals who perform volunteer work, compared to those who do not. The WHO Quality of Life questionnaire was applies in a group of 166 elderly individuals who performed volunteer work and to another 33 who did not. Results show most are women, single and with high-level educati...

The Descartes Rule of Sweeps and the Descartes Signature

The Descartes Rule of Signs, which establishes a bound on the number of positive roots of a polynomial with real coefficients, is extended to polynomials with complex coefficients. The extension is modified to bound the number of complex roots in a given direction on the complex plane, giving rise to the Descartes Signature of a polynomial. The search for the roots of a polynomial is sometimes ...

Pura vida.

Would you find it enticing to live in a country that has temperatures of 15 to 30°C year round? Would you consider living in a country situated between two continents, with coastlines so close to each other that easy access is available to both the Pacific Ocean and the Caribbean Sea? What if there was such ecological diversity that recreational possibilities included fishing, hiking, jungle ex...

Arithmetic Multivariate Descartes' Rule Arithmetic Multivariate Descartes' Rule

Let L be any number field or p-adic field and consider F := (f1, . . . , fk) where fi∈L[x ±1 1 , . . . , x ±1 n ]\{0} for all i and there are exactlym distinct exponent vectors appearing in f1, . . . , fk. We prove that F has no more than 1+ ( σm(m− 1)2n2 logm )n geometrically isolated roots in Ln, where σ is an explicit and effectively computable constant depending only on L. This gives a sign...